28346890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{461}}^1$

素因数の和:535

約数の個数: 64

約数和(自身を含む): 61471872

約数和(自身を除く): 33124982

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 43, 55, 65, 86, 110, 130, 143, 215, 286, 430, 461, 473, 559, 715, 922, 946, 1118, 1430, 2305, 2365, 2795, 4610, 4730, 5071, 5590, 5993, 6149, 10142, 11986, 12298, 19823, 25355, 29965, 30745, 39646, 50710, 59930, 61490, 65923, 99115, 131846, 198230, 218053, 257699, 329615, 436106, 515398, 659230, 1090265, 1288495, 2180530, 2576990, 2834689, 5669378, 14173445, 28346890]

約数ペア:

[(1, 28346890), (2, 14173445), (5, 5669378), (10, 2834689), (11, 2576990), (13, 2180530), (22, 1288495), (26, 1090265), (43, 659230), (55, 515398), (65, 436106), (86, 329615), (110, 257699), (130, 218053), (143, 198230), (215, 131846), (286, 99115), (430, 65923), (461, 61490), (473, 59930), (559, 50710), (715, 39646), (922, 30745), (946, 29965), (1118, 25355), (1430, 19823), (2305, 12298), (2365, 11986), (2795, 10142), (4610, 6149), (4730, 5993), (5071, 5590)]